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DROP TABLE IF EXISTS t1;
CREATE TABLE t1 (
id INT,
fake_id INT,
bigfield VARCHAR(4096),
PRIMARY KEY (id),
KEY bf (bigfield(32)),
KEY fid (fake_id, bigfield(32))
) ENGINE=rocksdb;
INSERT INTO t1 VALUES (1, 1001, REPEAT('a', 1)),
(8, 1008, REPEAT('b', 8)),
(24, 1024, REPEAT('c', 24)),
(31, 1031, REPEAT('d', 31)),
(32, 1032, REPEAT('x', 32)),
(33, 1033, REPEAT('y', 33)),
(128, 1128, REPEAT('z', 128));
SELECT * FROM t1;
id fake_id bigfield
1 1001 a
8 1008 bbbbbbbb
24 1024 cccccccccccccccccccccccc
31 1031 ddddddddddddddddddddddddddddddd
32 1032 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
33 1033 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
128 1128 zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
# Eligible for optimization, access via fake_id only
SELECT id, bigfield FROM t1 FORCE INDEX(fid) WHERE fake_id = 1031;
id bigfield
31 ddddddddddddddddddddddddddddddd
include/assert.inc [Eligible for optimization, access via fake_id only: 2 rocksdb_covered_secondary_key_lookups]
# Not eligible for optimization, access via fake_id of big row.
SELECT id, bigfield FROM t1 FORCE INDEX(fid) WHERE fake_id = 1033;
id bigfield
33 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
include/assert.inc [Not eligible for optimization, access via fake_id of big row.: 0 rocksdb_covered_secondary_key_lookups]
DROP TABLE t1;
set session debug= '+d,MYROCKS_NO_COVERED_BITMAP_FORMAT';
CREATE TABLE t1 (
id INT,
fake_id INT,
bigfield VARCHAR(4096),
PRIMARY KEY (id),
KEY bf (bigfield(32)),
KEY fid (fake_id, bigfield(32))
) ENGINE=rocksdb;
set session debug= '-d,MYROCKS_NO_COVERED_BITMAP_FORMAT';
INSERT INTO t1 VALUES (1, 1001, REPEAT('a', 1)),
(8, 1008, REPEAT('b', 8)),
(24, 1024, REPEAT('c', 24)),
(31, 1031, REPEAT('d', 31)),
(32, 1032, REPEAT('x', 32)),
(33, 1033, REPEAT('y', 33)),
(128, 1128, REPEAT('z', 128));
SELECT * FROM t1;
id fake_id bigfield
1 1001 a
8 1008 bbbbbbbb
24 1024 cccccccccccccccccccccccc
31 1031 ddddddddddddddddddddddddddddddd
32 1032 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
33 1033 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
128 1128 zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
# No longer eligible for optimization since no covered bitmap was stored.
SELECT id, bigfield FROM t1 FORCE INDEX(fid) WHERE fake_id = 1031;
id bigfield
31 ddddddddddddddddddddddddddddddd
include/assert.inc [No longer eligible for optimization since no covered bitmap was stored.: 0 rocksdb_covered_secondary_key_lookups]
# Not eligible for optimization.
SELECT id, bigfield FROM t1 FORCE INDEX(fid) WHERE fake_id = 1033;
id bigfield
33 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
include/assert.inc [Not eligible for optimization.: 0 rocksdb_covered_secondary_key_lookups]
DROP TABLE t1;
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